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Microchip Technology 1N4584AUR-1/TR
- Part No.:
- 1N4584AUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4584AUR-1/TR.pdf
- Description:
- DIODE ZENER 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
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Product details
Overview
1N4584AUR-1/TR from Microsemi is a temperature-compensated Zener reference diode in DO-213AA (MELF) glass package, rated for 4.0 mA test current, ±0.0005 %/°C temperature coefficient, 5 mV max voltage stability over −55°C to +100°C, and 25 Ω zener impedance - used in precision voltage references for aerospace instrumentation and satellite power regulation.
For engineers reviewing the 1N4584AUR-1/TR datasheet, 1N4584AUR-1/TR pinout, 1N4584AUR-1/TR application, or 1N4584AUR-1/TR equivalent, key selection criteria include low TC (±0.0005 %/°C), hermetic MELF packaging, MIL-PRF-19500/452 qualification, and stable operation at 4.0 mA across extended temperature ranges.
Technical Context
This device implements metallurgically bonded, double-plug construction to minimize thermal hysteresis and achieve ultra-low temperature coefficient. It operates within a tightly controlled 4.0 mA test current range and maintains voltage stability ≤5 mV across −55°C to +100°C per JEDEC 5.
Zener impedance is measured with 10% of IZT (i.e., 0.4 mA RMS at 60 Hz), yielding 25 Ω typical; reverse leakage is specified at 2 µA @ 3 VR, supporting low-power biasing in high-reliability analog circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | Specified at 4.0 mA; enables stable reference generation under low-current, low-power conditions. |
| Temp Coefficient | ±0.0005 %/°C; ensures sub-ppm/°C drift for metrology-grade voltage references. |
| Voltage Stability | ≤5 mV over −55°C to +100°C; meets MIL-PRF-19500/452 Class A requirements. |
| Zener Impedance | 25 Ω at 4.0 mA; minimizes AC ripple coupling into reference nodes. |
| Package | DO-213AA (MELF); hermetically sealed glass provides moisture resistance and long-term parametric stability. |
| Qualification | JANS level per MIL-PRF-19500/452; certified for spaceflight and defense-critical systems. |
Pinout & Package
DO-213AA (MELF) glass package: cylindrical, leadless, axial-symmetrical body with cathode band marking. Hermetic seal ensures zero moisture ingress and lifetime parameter retention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reference output node | Connected to regulated positive rail; polarity must be observed to avoid reverse breakdown failure. |
| Anode (unbanded end) | Current return path | Typically grounded or tied to negative supply; completes bias current loop for Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Temperature compensation | Double-plug metallurgical construction achieves ±0.0005 %/°C TC - critical for cryogenic to high-temp aerospace sensors. |
| Hermetic MELF packaging | DO-213AA glass enclosure prevents parameter shift due to humidity or outgassing in vacuum environments. |
| MIL-PRF-19500/452 compliance | JANS screening includes radiation hardness assurance, burn-in, and lot traceability for flight hardware. |
| Low dynamic impedance | 25 Ω at 4.0 mA supports clean DC reference with minimal noise coupling in PLL and ADC reference circuits. |
Applications
| Spacecraft Power Monitor | Aerospace Inertial Navigation |
|---|---|
Use Scenario: Monitoring bus voltage in LEO satellite power distribution units where thermal cycling exceeds 1000 cycles between −55°C and +100°C. IC Role / Device Role / Timing Role: Precision voltage reference for 24-bit SAR ADCs measuring battery cell voltages. Use Value: ±0.0005 %/°C TC and 5 mV stability ensure <0.001% full-scale error over mission lifetime. | Use Scenario: Biasing gyroscopic sensor front-end amplifiers in missile guidance systems requiring zero-drift calibration. IC Role / Device Role / Timing Role: Stable excitation source for Wheatstone bridge transducers in ring laser gyros. Use Value: Hermetic MELF package eliminates humidity-induced offset drift during high-G launch vibration. |
| Nuclear Reactor Control Loop | Deep-Space Probe Telemetry |
Use Scenario: Providing reference for radiation-tolerant DACs controlling neutron-absorbing rod position in fission reactors. IC Role / Device Role / Timing Role: Primary voltage standard in feedback control circuitry operating continuously at +125°C ambient. Use Value: JANS qualification and 175°C max storage temp support continuous operation in high-radiation, high-temp zones. | Use Scenario: Calibrating photodiode signal chains in Voyager-class deep-space optical comms receivers. IC Role / Device Role / Timing Role: Reference for ultra-low-noise preamplifier gain-setting networks in cryogenic front-ends. Use Value: 25 Ω zener impedance minimizes Johnson-Nyquist noise contribution below 10 nV/√Hz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4584A | Same electrical specs and DO-213AA package; identical JANS qualification level and TC. | No functional difference; CDLL4584A is the Microsemi commercial prefix variant of 1N4584AUR-1/TR. | Select CDLL4584A when sourcing through non-military procurement channels with same performance requirements. |
| 1N4584AUR-1 | Omits "/TR" suffix; identical die, package, and screening - differs only in tape-and-reel packaging format. | No circuit-level impact; /TR denotes reel packaging for SMT placement; bare part is functionally identical. | Choose 1N4584AUR-1 for manual prototyping or low-volume board assembly without pick-and-place. |
Compared with CDLL4584A and 1N4584AUR-1, the 1N4584AUR-1/TR offers identical metrological performance but is optimized for automated surface-mount production via EIA-481-compliant tape-and-reel delivery - enabling direct integration into high-reliability aerospace SMT lines without rework.
Availability
1N4584AUR-1/TR is available at Aetrix Electronics and suitable for spacecraft power monitoring, inertial navigation systems, and nuclear reactor control loops requiring stable component supply under MIL-PRF-19500/452 compliance.
Supply support for 1N4584AUR-1/TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi (now part of Microchip Technology) designs high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N4584AUR-1/TR belongs to the CDLL45xxA series of temperature-compensated Zener references engineered specifically for metrology-grade voltage stability in extreme-environment applications.
FAQ
What is the Zener test current for the 1N4584AUR-1/TR?
The 1N4584AUR-1/TR is characterized at a Zener test current (IZT) of 4.0 mA. This value is specified in the Electrical Characteristics table and defines the operating point for all key parameters including zener impedance (25 Ω), temperature coefficient (±0.0005 %/°C), and voltage stability (≤5 mV). Operating significantly above or below this current degrades TC performance.
Is the 1N4584AUR-1/TR compatible with lead-free soldering processes?
The 1N4584AUR-1/TR features tin/lead lead finish and is not qualified for lead-free reflow profiles. Its maximum junction temperature rating remains +175°C, but the eutectic solder alloy limits peak reflow exposure to ≤220°C. For RoHS-compliant assembly, Microsemi recommends verifying compatibility with J-STD-020 Class 3 guidelines prior to use.
Does the 1N4584AUR-1/TR require derating above +50°C?
Yes - the 1N4584AUR-1/TR has a DC power dissipation rating of 500 mW at +50°C, with linear derating of 4 mW/°C above that temperature. At +100°C ambient, maximum allowable dissipation drops to 300 mW. This derating must be applied in thermal design to prevent junction overheating and parametric shift.
What does the "/TR" suffix indicate in 1N4584AUR-1/TR?
The "/TR" suffix in 1N4584AUR-1/TR denotes tape-and-reel packaging per EIA-481 standards, optimized for automated SMT placement. The underlying die, electrical specifications, DO-213AA package, and JANS qualification are identical to the bulk or ammo-pack versions - only the packaging format differs.
How does the 1N4584AUR-1/TR achieve its ultra-low temperature coefficient?
The 1N4584AUR-1/TR achieves ±0.0005 %/°C TC via metallurgically bonded, double-plug Zener construction - two complementary Zener junctions with opposing TCs are integrated monolithically to cancel thermal drift. This architecture is validated across −55°C to +100°C per JEDEC 5 and documented in the CDLL45xxA family datasheet.
1N4584AUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4584AUR-1/TR FAQ
1.How can I place an order for 1N4584AUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4584AUR-1/TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N4584AUR-1/TR reliable?
The price and inventory of 1N4584AUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4584AUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4584AUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4584AUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4584AUR-1/TR?
1N4584AUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4584AUR-1/TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N4584AUR-1/TR?
For technical support, including 1N4584AUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4584AUR-1/TR requirements.
6.How does Aetrix verify that 1N4584AUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4584AUR-1/TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N4584AUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4584AUR-1/TR?
All 1N4584AUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4584AUR-1/TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N4584AUR-1/TR part is unused and in its original packaging.
Return procedure for 1N4584AUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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